Dr Jahangeer is the founder of the Singapore-based accredited Energy Services Company (ESCO), Energy Conservation Specialists Singapore Pte Ltd providing consultancy services for mechanical and energy Systems including large-scale trigeneration systems, boilers, and compressed air systems. 

He is a registered Professional Engineer (Mechanical) with the Professional Engineer Board (PE Board) Singapore. Dr Jahangeer graduated with a Master of Science (M.Sc.) in Mechanical Engineering from the National University of Singapore in 1998. He was awarded a Research Scholarship by the National University of Singapore (NUS) in 1999 to undertake a research project on solar energy and was awarded a Master of Engineering (M.Eng.) degree in 2002. After completing his M.Eng. degree, he continued with research and teaching at NUS and his research on evaporatively-cooled condensers of air-conditioning systems led to the award of a PhD degree in 2013. 

Dr Jahangeer’s areas of specialisation include air-conditioning and mechanical ventilation systems, combined heat and power systems, steam technologies, steam turbines and boiler systems, compressed air system optimisation, building energy simulation and energy optimisation and energy efficient data centres. He has also authored chapters in several technical books and research papers in international peer-reviewed journals. Dr Jahangeer is a certified Energy Efficient Opportunity Assessor (EEOA, Industry) by the National Environment Agency (NEA), Singapore. He is also an SCEM (Singapore Certified Energy Manager) and a Certified Data Centre Professional. He is a Senior Member of the Institute of Engineers Singapore (IES) involved in many professional engineering activities in Singapore and the region. 

For the last 13 years, he has also been providing training for local and international practising engineers from the mechanical and energy services sector including the Singapore Certified Energy Manager (SCEM) professional candidates. He along with his former colleagues has already trained about two thousand industrial professionals as Singapore Certified Energy Managers (SCEMs) since the inception of the SCEM in 2009.

Mr Samy is an Energy Specialist and Research Fellow at the Energy Efficiency Technology Centre (EETC), Singapore, where he has been conducting Level 3 energy audits for small and medium enterprises since September 2020. His audits span precision engineering, metal fabrication, heat treatment, food and packaging industries, with a focus on boilers and steam systems, compressed air systems, chillers, cooling towers, pumps, furnaces and lighting.

He holds a Master of Science (M.Sc.) in Environmental Engineering, a Bachelor of Engineering (B.E.) in Mechanical Engineering and a Postgraduate Diploma in Sugar Engineering. He is a Singapore Certified Energy Manager (SCEM) and a Singapore Water Efficiency Manager and holds the Singapore First Grade Steam Engineer Certificate and the Indian Boiler Operation Engineer (BOE) Certificate. He is also a qualified trainer under the Training of Trainers (TOT) Energy Manager program of the AJEEP Scheme 2.

Mr Samy brings over 35 years of industrial experience across Singapore, Malaysia, China, India and Africa, in sugar refineries, alcohol distilleries and cogeneration/trigeneration plants. His work has covered plant operation and maintenance, preventive and shutdown maintenance, project design and engineering, HAZOP studies, equipment selection, project management, testing and commissioning, QA/QC, process optimization and troubleshooting, and statutory reporting and inspection. He has also led and trained teams of design and project engineers and supported tenders and new project development.

At EETC, he has trained and mentored Singapore Institute of Technology (SIT) Integrated Work Study Programme (IWSP) students as assistant engineers on live industrial energy audits. He coordinated and contributed to the EEUP Boiler and Steam System course, which combined theoretical knowledge with practical training and received strongly positive participant feedback, and is helping to set up a mini plant for hands-on energy audit training.

His teaching on steam boiler systems and air compressors draws directly on decades of operating, maintaining and auditing these systems in the field, linking engineering principles to the energy losses and savings opportunities found on real plant floors.

Mr. S. Rajasekar is a Research Fellow (Engineering) at the Singapore Institute of Technology (SIT), where he leads the development of the Energy Efficiency Training Facility. A Singapore Certified Energy Manager (SCEM), he returned to academia in 2023 following a distinguished 30-year career in the industrial sector.

His extensive industry background includes serving as Manager of Mechanical Maintenance at the Steel Authority of India (Rourkela Steel Plant) and holding senior roles at Sembcorp Utilities, Terminals, and Mitsui Elastomers as a Plant Mechanical Manager. Today, he leverages his decades of practical experience to design training facilities and curricula for SIT students and aspiring Singapore Certified Energy Managers.